Safety-razor



E. D. cHAnwmK.

SAFETY RAZOR.l

APPLICATION FILED DC.23. 1918.

Patented Nov. 42, 1920.

2 SHEETS-SHEET 2.

Application tiled ecenilser 523, i918.

.lle it vknown that l. Fvnnnr'r l). CHAD- wiru, a citizen ot the United States, residing` at ll'iucliestei", in the county ot llliddlesex and btate ot illassachusetts. have inH vented certain new and nse'lul improvements in Safety-Razors, oi which the tollowing is a specihcation.

iii/ly invention relates to saiiety razors in4 which siugle-edgedr blades are employed, and resides iu certain features of construction and arrangement hereinafter described in connection with the accompanying drawings, in which Figure l is a side elevation illustrating one torni ot' razor embodying` my invention,

with the parts in position for use;

F ig. 2 is an end view of the same;

l `ig. 3 is a side elevation illustrating the parts in a different position;

Fig. il: is an end vieu7 with the holder in open position and the blade removed;

Fig. 5 is a side elevation illustrating a modified torni of the razor;

Fig. (i is an end view of the same;

F 7 is a side elevation illustrating another modification;

Flag. 8 is a rear view ofthe parts shown in Fig. 7, with the blade removed; and

Fig. 9 is an end vien' of the parts shown in Fig. 8.

rl`he razor illustrated in Figs. l and 2 comprises a handle 2, a blade-supporting head 3 secured to one end of the handle and extending' transversely thereto, a guard et formed on the front edge of the head 3, a pair ot stops 5 located at opposite ends yof the guard and adapted to engage the front or cutting edge of the blade and hold it in proper relation to the guard, and a pair of lugs 6 extending upward from the ends ot the head 3 and adapted to position th'e blade in an endivise direction. ln addition to .these parts, which are not materially different from those Jound in prior razors, I employ a spring 7 securedto the head 3 with its `tree end extendingnpwvard above the head, and a blade-engaging member .8

which is hinged to the spring 7 on an axis extending parallel with the guard and is provided with a seat 9 adapted to receive and support the rear edge ot .the blade, shown at l; The blade is inserted While the other parts are in about the position lvl? GltLADl/VICK, OF WlilCHESTlEE-t, l

Serial No. 267,399.

swinging` the m einher 8 doivnivard'until the blade passes through and slightly beyond a dead-center position with respect to the pivo ii otal axis ot the member 8, whereupon such movement is arrested by a stop consisting in this form of razor ot' the free end oiisaid member 8, which brings up against the top of the blade. The parts are so proportioned and arranged that when in this position, shown in Fig. l, the upper end of the spring T exerts a forward pressure on the blade whereby the latter is held lirmly against the stops and the free end of the member 8 is also held down upon the blade, which is therelgiy maintained in operative position in the holder until released by swinging the member il upward. l

rllhe shape of the member S shown in Figs. l to 4 inclusive is such that its free end extends substantially the entire length ot the blade and bears upon the latter a short distance back of its cutting' edge when in operative position, this arrangement being particularly intended for use in connection with blades Which are so thin that it is necessary or advantageous to provide a supporting backing' located adjacent to the cutting' edge. Such a backing is ai"- orded by the free edge of the member 8 above described, which can be caused to exert upon the blade as strong a. pressure as may be desired by employing a sulficiently stift spring l'. AT his spring should in any case be stiilU enough tov hold the blade securely against the stops 5, the opening and closing of the holder being` easily effected regardless of the stiffness of the spring by reason of the favorable leverage available tor operating-the member 8. ln case the blade employed is so rigid that it doesnot require a backing near its cutting edge the member 8 may obviously have any size and contour consistentu'ith its engaging the blade when swung downward beyond the deadecenter position of the latter.

ln the form of razor illustrated in Figs. 5 and 6 the parts 2, 3, l, 5 and G are con! structed as already described but the forwardly-projecting end portion is omitted from the blade-engaging member, which in this case consists of a bar 8 pivotally mounted in'a recess in the upper end of: the spring 7 and provided on each ofits oppo-v site longitudinal edges These two seats areflocated at different distances from the pivotal aXis of the bar 8', which can be turned over to present either seat in. operative position, so lthat blades .of

different `widths canbe .used .interchangeably in the holder.: To 'insert a blade its cutting edge is engaged with'thev stops 5,'its rearedge is placedin onel or theother ofthe seats 9, according to the width of the blade, n

while the plane of the latter is above its dead-centerposition .with lreference to the pivotal axis or" the bar 8, and the blad@ engaging .edgeA of the latter is then swung downward beyond the dead-center position, whereupon itengages and rests upon the upper end of' a stop 1l extending upwardlyjrom the head a blade-receiving seat 9 on its front edge only. and is provided at its opposite edge with an extension 12-v which projects downward into a convenient position for opera tion `Aby the user to eject the blade. Otherwise the parts are constructed as shown in- Figs. 5 and 6 and the blade is inserted,.re tained and ejected in the same way.

rlbe principal advantages of the razor above described reside in the simplicity and durability of the construction, in the adaptability of the holder for use with various commercial blades andv in the r'a-cilitywith which the blades 'can be inserted in. the holder and removed therefrom.- The details .of construction can obviously be modified in various ways without losing these advantages, or departing from my invention.

I claim l. ln a safety razor, the combination of o. handle, a guard, stops for positioning the with a vseat 9 adapt,-v ed to receive the rear edge of' a blade...

until the blade passes slightlysupported cutting edg'eor1 the blade with respect to the guard, a blade-engaging member pivotally mounted on an axis parallel with the guard y `and provided in front of its axis with a seat adapted to support the rear 4edge oi the blade above a dead-center position with respect t said axis and to carry the blade .downward through said deadscenter position4 while its cutting edge isengag'ed by' saidstops, a spring. arranged to` press the 'blade-engaging member toward the guard, l and means for arresting the pivotal movementgofsaid member after the blade sup-v portedv Ithereby has passed through said dead-center position.

2. In a safety razor, handle, cutting edge of the blade with respect to the guard, a lspring carried by the handle, a

the combination of a blade-engaging member lpivotally mounted on the spring onlan axis parallel with the guard, said member being provided in front of its axis with a seat adapted to support. "the rear edge of the blade above a deadcenter position with respect to saidl axis 4and to carry the rear edge of the blade downward through said dead-center position,

while itscutting edge is engaged by said stops, and means for arrestingthe pivotal movement of said member after the blade thereby has passed through said dead-center position.

2 3. In a safety razor, the combination of a handle, a guard, stops for positioning the cutting edge of the blade with respect to the guard, a blade-engaging member pivotally mounted on an aXis parallel with the guard and provided in front of its axis with a seat adapted to support the rear edge of the blade above 'a dead-center position with re. spect to said aXis and to carry the blade downward throughsaid dead-center position while its cutting edge ,is engaged by said stops, and a spring arranged to press the blade-engaging member toward the guard,said. member being provided with a forwardlyextending free end'adapted to rest on the blade when inoperative position.

Signedat Boston, Mass., this 20th day. of*

December,

1 EVlfJRlYIYlV D. CHADWICK.

a. guard, stops for positioning the 

